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【单选题】
4岁的豆豆在家里吃饭的时候,要与家人比赛,她宣布,我第一名,外公第二名......。可是,外公先吃完了,她说,外公再吃一碗,我要第一名的。这反应了下面的什么现象。A.
前道德阶段，
B.
他律道德，
C.
自律道德，
D.
天真的享乐主义
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举一反三
【单选题】The cost of fire insurance for a manufacturing plant is generally c onsidered to be a ( )
A.
product cost
B.
period cost
C.
variable cost
D.
all of these
【简答题】已知 t = linspace(0,20*pi, 501); plot3(t.*sin(t), t.*cos(t), t); 命令执行后绘制出上图, 如要绘制下图可以使用的命令是( )。A. plot3(t.*sin(t),t.*cos(t),t); hold on plot3(t.*sin(t), t.*cos(t), -t); B. plot3(t.*sin(t),t.*cos(t)...
【单选题】A manufacturing plant exhibits diseconomies of scale if long-run average cost (LRAC) is:
A.
decreasing as output increases, and the plant is at its minimum efficient scale if LRAC is at its lowest level.
B.
decreasing as output increases, and the plant is at its minimum efficient scale if LRAC is decreasing over the entire range of output.
C.
increasing as output increases, and the plant is at its minimum efficient scale if LRAC is at its lowest level.
【简答题】已知t = linspace(0,20*pi, 501);plot3(t.*sin(t), t.*cos(t), t);命令执行后绘制出上图， 如要绘制下图可以使用的命令是（ ）。【图片】【图片】【图片】A. plot3(t.*sin(t),t.*cos(t),t); hold on plot3(t.*sin(t), t.*cos(t), -t);B. plot3(t.*sin(t),t.*cos...
【单选题】For a manufacturing company, identify the following as either product cost or period cost: Utility expense for the manufacturing plant
A.
product cost
B.
period cost
【单选题】A cost-output relation for a specific plant and operating environment is the:
A.
short-run cost curve.
B.
long-run total cost curve.
C.
long-run marginal cost curve.
D.
long-run average cost curve.
【简答题】Hourly cost of ( )plant is generally less than ( ) plant.
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